566 POACE^. 



elongata Torr. Fl. U.S. 1:112(1834). Glyceria elongata Trhu 

 Bull. Sci. Acad. St. Petersb. 1: 68 (1836). 



A slender perennial, 60-90 cm, high. Sheaths closed^ about 

 the length of the internodes; ligule 1 mm. long; blades 7-8 in 

 number, smooth or scabrid, fiat, 20-30 cm. long, 3-4 mm. wide. 

 Panicle exserted, slender, recurving, 20-30 cm. long, rays single or 

 in pairs, distant, appressed, the longest 5-8 cm. long, spikelike. 

 Spikelets 4-5 mm. long, 3-4-flowered, oval or oblong, rachilla brit- 

 tle, a joint 0.7 mm. long; empty glumes ovate-lanceolate, 1-nerved? 

 almost keeled, first 1.5-2 mm. long, second 2-2.5 mm. long; fioral 

 glume oval, sub-acute or obtuse, 7-nerved, 2.7-3.3 mm. long; palea 

 spatulate-oblong, apex obtuse, entire, about the length of its glume. 



Xew Brunswick, ,/. Yroom; Maine, Fernald 189; Vermont, 

 Pringle, Hosford, C. E. Faxon 10. * 



Wet woods from Canada, New England to Minnesota. 



4. P. pallida (Torr.) Kuntze, Rev. Gen. PL 783 (1891). 

 Windsoria pallida Torr. Cat. PI. N. Y. 91 (1819). Glyceria 

 imllida Trin. Bull. Sci. Acad. St. Petersb. 1:68 (1836). Poa 

 dentata Torr. Fl. U. S. 1:107 (1824); Torr. Fl. N. Y. 2: t. 155 

 (1843). 



A pale slender ascending jierennial, 30-60 cm. high, from a 

 creeping base. Sheaths about the length of the internodes; ligule 

 3-5 mm. long ; blades 4-6, fiat, pale, usually smooth, sharp-pointed, 

 10-15 cm. long, 3-4 mm. wide. Panicle often included at the 

 base, oj^en, linear or oval, 10-13 cm. long, rays mostly in pairs, 

 subequal, the longest 5-8 cm. long, fiower-bearing for the upper 

 two-thirds. Spikelets 4-6 mm. long, 5-9-fiowered, oblong-linear^ 

 joint of rachilla 0.7 mm. long; empty glumes ovate or oval, first 

 1.5 mm. long, 1-2-3-nerved, second 3-4-nerved, 1.5-2 mm. long; 

 fioret scabrid, oblong, contracted or pinched near the apex, fioral 

 glume 2.5-3 mm. long, oval when spread, 7-nerved, marginal 

 nerves obscure, apex irregularly toothed; pulea linear, scabrid on 

 the keels, as long as its glume or a little longer. 



Vermont, Pringle; Massachusetts, Cooley; Michigan, Farwelly 

 Clarke 2054, Beal 114, Dlieeler. 



Shallow water in margins of ponds. 



